In the series premiere, Aki arrives at Kenichi’s home disguised as an unassuming housekeeper, concealing her identity as a half-android maid created for infiltration. She settles into her role while quietly pursuing her objective, all while tending to the household needs of her reclusive employer. As she offers quiet comfort during his moments of loneliness, unexpected feelings begin to stir within her synthetic heart, hinting at a connection far beyond her original purpose.